Hinge comprising a fixing element

Abstract

The invention relates to a hinge (10) for the rotational connection of a door (20) with a frame (30), comprising a first hinge element (1) for mounting on the door (20) and a second hinge element (2) for mounting on the frame (30), one of the two hinge elements (1, 2) having a hinge eye (1.1) and the other having a hinge shaft (2.2), the hinge shaft (2.2) being arranged in a rotationally fixed manner on a shaft holder (2.1). The hinge elements (1, 2) can be coupled to one another, so that the door (20) is mounted in a rotationally fixed manner on the frame (30). The hinge further comprises a securing element (3) for securing the two hinge elements (1, 2) against disengagement, wherein the securing element (3) and the hinge eye (1.1) are located on opposite sides of the shaft holder (2.1).

Description

Technical Field

[0001] This invention relates to a hinge for rotatably connecting a door to a frame. The hinge includes a first hinge element for mounting on the door and a second hinge element for mounting on the frame. One hinge element has a hinge eye, and the other hinge element has a hinge pin, which is mounted on a bracket to prevent relative rotation. The hinge elements can be coupled to each other, thereby rotatably mounting the door to the frame. The hinge also includes a fixing element for securing the two hinge elements to prevent detachment. Background Technology

[0002] Hinges are used in various technical fields and to rotatably mount doors onto a fixed frame, which may be, for example, part of a cabinet. Doors are not only doors in the strict sense, but also include flaps, hatches, windows, and other rotating closing elements.

[0003] A hinge is essentially composed of two pivotally connected hinge elements, one located on the frame and the other on the door. The two hinge elements are pivotally connected to each other, allowing the door to rotate relative to the frame, thus opening and closing.

[0004] In typical designs, one of the two hinge elements has a hinge pin, while the other has a hinge eye. This is because by arranging the hinge eye on the hinge pin, a rotational connection between the two hinge elements can be achieved in a relatively simple way. Furthermore, there exist hinges where both hinge elements have hinge eyes, and the hinge pin is designed as a separate component that can pass through both hinge eyes. However, due to the separate hinge pin, the installation of such hinges is more complex.

[0005] In practice, hinge elements on doors typically have hinge eyes, while hinge elements on door frames have hinge pins. The hinge pin is usually held in a position substantially parallel to the frame extension by a pin bracket, and is thus fixedly connected to the frame via the pin bracket. When installing a door or attaching it to the frame—often referred to as a "hung door"—the door is first moved so that the hinge eyes are as centrally aligned as possible above the hinge pin. As the door is lowered, the hinge eyes slide axially along the hinge pin until they rest on the pin bracket. The hinge eyes are then rotatably connected to the hinge pin, allowing the door to rotate relative to the frame.

[0006] If the hinge eye is on the frame and the hinge pin is on the door, then install or hang accordingly.

[0007] Although suspended doors can rotate reliably and, due to their weight, there is generally no risk of the hinge eye falling off the hinge axis, there are still certain risks during transportation. For example, if the door is mounted on a cabinet, it is possible for the door to be accidentally removed during transport.

[0008] Problems can also occur if the cabinet is empty or not secured to the floor or wall. This is because when the door is opened, the resulting shift in the center of gravity causes the cabinet to tilt forward, causing the door to rest against the floor and lift it off the hinges.

[0009] To address this, a retaining element is known to secure the two hinge elements, preventing separation and ensuring that the hinge eye does not move axially relative to the hinge axis. For example, in the simplest case, a spring ring or safety cotter pin could be provided and attached to the hinge axis above the hinge eye.

[0010] While such fasteners typically ensure that the two hinge elements are reliably secured, installation can sometimes be tricky because there is usually very little space above the hinge eye for installing the fastener. Furthermore, tools are often required to install or remove the fastener. Summary of the Invention

[0011] Therefore, the object of the present invention is to provide a hinge in which the hinge element can be fixed in the most user-friendly manner to prevent detachment.

[0012] This objective is achieved by placing the fixing element and hinge eye on opposite sides of the axle frame in the hinge type mentioned above.

[0013] Because the fixing elements and hinge eyes are arranged on opposite sides of the axle bracket, there is considerable space available for installing and removing the fixing elements, which makes it easier to secure the two hinge elements.

[0014] Preferably, the fixing element is rotatable relative to the second hinge element. Due to the rotatability of the fixing element, it is not limited to a predetermined position, such as a safety cotter pin. More precisely, due to the rotatability of the fixing element, it can be blind-mounted and is not limited to a specific installation location. In terms of design, the fixing element can be block-shaped, which ensures good manual operability and therefore facilitates installation.

[0015] Regarding the arrangement of the fixing element, preferably, the fixing element is connected to the second hinge element, particularly arranged on the fixing axis of the second hinge element. In this way, the fixing element can be connected to the second hinge element via the hinge axis. The fixing axis can be aligned with the hinge axis, thus forming a common axis of rotation for the hinge. The fixing element can be designed according to the style of a fixed hinge eye (Sicherungsgelenkauge), and thus can be arranged in a manner essentially similar to a hinge eye.

[0016] To install the fixing element, it is proposed to insert the fixing element into the fixing shaft. This insertion makes installation very simple and allows for blind installation. The fixing element may have holes that allow for the corresponding insertion. The fixing shaft can be bolt-shaped or pin-shaped, like a hinge shaft. When inserting the fixing element, the fixing element can move axially towards the shaft holder.

[0017] Furthermore, preferably, the fixing element can be latched with the second hinge element, particularly with the fixing shaft. The corresponding latching connection is characterized in particular by its ability to achieve tool-less assembly. This is because the fixing element only needs to be inserted onto the fixing shaft for connection, and once the fixing element reaches the latch position, it can no longer move axially relative to the fixing shaft. Advantageously, the rotational movement of the fixing element on the fixing shaft is unaffected by the latch, allowing the fixing element to rotate freely about the fixing shaft even in the latched position. To release the fixing element from the fixing shaft again, a predetermined force can be used to pull the fixing element off the fixing shaft. The force required to release the fixing element can be calculated such that it is not reached during normal operation and transport, thus ensuring a reliable connection between the fixing element and the fixing shaft. If a sufficiently large force is applied, the latching connection will automatically disengage, and the fixing element can be disassembled without tools.

[0018] In terms of design, preferably, the fixing element can be latched onto the fixing shaft by a latching claw. The latching claw ensures a reliable connection between the fixing element and the fixing shaft. Preferably, the fixing element can be latched to the fixing shaft by the latching claw. The latching claw ensures a reliable connection between the fixing element and the fixing shaft. When the fixing element is inserted, the latching claw can elastically deform and then automatically latch when it reaches the corresponding locking slot. In practice, preferably, the shape of the latching claw is similar to an arc. This design allows the latching claw to clamp the fixing shaft in segments and abut against the circumference of the fixing shaft. Preferably, an approximately 90-degree sector angle is preferred, as this not only ensures the reliability of the latch but also allows the latch to be released relatively easily.

[0019] Regarding the fixed shaft, preferably, the fixed shaft has a locking groove into which the fixing element can be latched. The locking groove allows the fixing element or latching pawl to engage in any position. The locking groove also permits the fixing element to rotate 360 ​​degrees around the fixed shaft in the latched position.

[0020] Regarding the latch, preferably, the latch of the fixing element can be manually released from the fixing shaft. This eliminates the need for additional tools to install and remove the fixing element. For example, during removal, fingers can be inserted behind the latch claw and twisted radially out of the locking slot.

[0021] Furthermore, in this invention, the fixing element abuts against the shaft bracket. Therefore, the shaft bracket can be arranged between the fixing element and the hinge eye. Similar to the hinge eye, the fixing element can also slide off the shaft bracket when the door rotates.

[0022] Regarding the load on the fixed element, preferably, it is positioned outside the force line between the hinge elements. The door can be supported on the frame by two hinge elements, allowing the weight of the door to be transferred to the frame via the two hinge elements, thus bypassing the fixed element. Therefore, the fixed element does not bear a high load and can be used for doors of different sizes and weights. The weight of the door is primarily borne by the hinge pins or pivots.

[0023] Regarding the second hinge element, preferably, the fixed shaft and the hinge shaft are connected as a single unit. Furthermore, preferably, the fixed shaft and the hinge shaft are designed as bolts passing through the shaft holder. The bolts can be straight, tapered at the end, or chamfered, which simplifies the connection or installation of the fixing element and the hinge eye. Since the bolts sometimes need to withstand significant forces, they particularly need to be made of metal. The shaft holder can be designed as a separate component, securing the bolts via friction or form-fit connection. Alternatively, the shaft holder can be integrated with the bolts, or optionally connected only to the hinge shaft or the fixed shaft.

[0024] Preferably, the hinge pin and the fixed pin extend from the pivot bracket. The hinge eye or fixing element can be located on the corresponding protrusion. The hinge pin can extend upwards relative to the pivot bracket, and the fixed pin can extend downwards relative to the pivot bracket. Alternatively, the fixed pin can also extend upwards, while the hinge pin extends downwards. This depends on whether the hinge eye is located on the door side or the frame side. If the hinge eye is located on the door side, it can be mounted on the pivot bracket. If the hinge eye is located on the frame side, and the hinge pin is located on the door side, the pivot bracket can be mounted on the hinge eye. However, the hinge can be used not only to connect the vertical surface of the door to the frame, but also to connect the horizontal surface of the door to the frame. In this case, the hinge eye will be located on the right or left side of the pivot bracket.

[0025] Furthermore, preferably, the second hinge element is symmetrically designed. With this symmetrical design, the same hinge element can be used for doors that hinge on the right side or the left side. The fixed axis of a door with a right-hand hinge becomes the hinge axis of a door with a left-hand hinge, and vice versa. The axis of symmetry can extend centrally through the axle bracket and span the hinge axis or the rotation axis.

[0026] Preferably, the hinge eye and hinge pin are hooked together. This allows the door to be directly rotatably mounted on the frame after the two hinge elements are connected. Thus, once the door is connected to or suspended from the frame, the fixing elements can be installed in a later step. Therefore, it is not necessary to secure the door in place when installing the fixing elements or securing the two hinge elements. The ability to suspend a door does not necessarily mean that the weight of the door must be borne by the frame. Rather, it means that the door and frame are rotatably connected. For example, a box flap is also thus suspended from the frame, even though the hinge elements do not bear the weight of the door.

[0027] Preferably, the hinge eye rests against the pivot bracket, and slides on the pivot bracket when the door moves. Therefore, if the hinge eye is located on the door side, the door can be supported on the pivot bracket; if the hinge eye is located on the frame side, the pivot bracket can be supported on the hinge eye. To protect the material, a washer, which particularly has good sliding properties, can also be provided.

[0028] Preferably, the hinge pin is arranged inside the hinge eye. Unlike the aforementioned safety cotter pin or retaining pin, the retaining element does not require any space on the side of the pivot bracket where the hinge eye is mounted, therefore the hinge pin does not need to protrude relative to the hinge eye. The hinge pin can be the same length as the hinge eye or shorter than the hinge eye. Since the hinge pin is preferably the same length as the retaining pin, the retaining pin can also be the same length as the hinge eye or shorter.

[0029] To ensure reliable fixation, the fixing element axially secures the hinge eye to the hinge shaft. Therefore, the hinge eye cannot move axially relative to the hinge shaft, nor can it detach from the hinge shaft.

[0030] Preferably, the fixing element is connected to the first hinge element, particularly through a swivel connection. When the door rotates, this swivel connection allows the fixing element to rotate together with the door or hinge eye about a fixed axis. However, axial movement of the fixing element relative to the first hinge element or the door is prevented. Therefore, the hinge elements can be reliably connected and fixed to each other at any rotational position of the door. In addition to connecting the two hinge elements via the hinge axis and hinge eye, the fixing element can also provide a second connection point between the two hinge elements.

[0031] From a design perspective, preferably, the fixing element has a latching device. This latching device latches the fixing element to the first hinge element or door. The latching device allows the fixing element to be connected to the first hinge element or door without tools. For this purpose, the fixing element can be inserted onto a fixed axis and then rotated about the fixed axis until the fixing element contacts the first hinge element or door, and then latched accordingly. In the latched position, the fixing element no longer rotates relative to the first hinge element or door, but is rotatably connected to the first hinge element or door. For connection to the door, a mounting bolt can be provided on the inside, and the fixing element can latch with the mounting bolt. For example, the mounting bolt can be welded or riveted to the inside of the door. In the opposite arrangement, where the first hinge element is arranged on one side of the frame and the second hinge element is arranged on one side of the door, the fixing element can be latched accordingly with the first hinge element or frame.

[0032] In another embodiment, the fixing element can also be magnetically rotated to the first hinge element or the door.

[0033] Furthermore, for the latching device, preferably, the latching device has two latching arms that can engage with the latching profile of the first hinge element. When the locked position is reached, the latching arms can automatically latch with the latching profile, thereby ensuring a reliable connection between the first hinge element and the fixing element. When the fixing element rotates, if the latching arms contact the latching profile and automatically engage behind the locking profile after reaching the locked position, the latching arms will deform within an elastic range. If the fixing element is to be latched to a door or frame, the mounting bolts provided on the door or frame can also have a corresponding latching profile that enables latching with the latching device of the fixing element. Other latching profiles or different arrangements can also be used on the frame and / or door.

[0034] Regarding the design of the fixing element, preferably, the fixing element has a recess for receiving mounting bolts. If the fixing element is to be locked to the door or mounting element, a latching device can be arranged within or at the recess. Even if the fixing element is to be latched to the first hinge element, the recess can also be used to ensure that there are still corresponding mounting bolts on the door, which are at least not intended for latching to the fixing element. In this respect, the recess can be designed as a receiving hole. The number of mounting bolts on the door can be more than actually needed, which means that the same door can be used for different installation situations; for example, a door hinged on the left and a door hinged on the right can use different mounting bolts.

[0035] Furthermore, preferably, the arrangement and design of the fixing elements enable them to automatically latch with the first hinge element, the door, or the frame when the door is closed. This design further simplifies installation. This is because the fixing elements are simply plugged into the fixing shaft, and when the door is closed, the fixing elements automatically latch with the first hinge element, the door, or the frame. This creates an automatic locking function, and even if the hinge elements cannot properly latch with the door, the first hinge element, or the frame, there is no risk of the two hinge elements unintentionally disengaging from each other again. This is because the fixing elements automatically latch when the door is first closed. Even with multiple fixing elements, installation is advantageous because all fixing elements latch simultaneously when the door is closed. This also simplifies the installation of large doors.

[0036] Regarding the first hinge element, preferably, the first hinge element has a latch profile into which the latching device of the fixing element can engage. The latch profile ensures a reliable connection between the fixing element and the first hinge element when it engages with the latching device. More preferably, the first hinge element has two latch profiles for different installation configurations. For example, one latch profile is used for a door hinged on the left, and the other latch profile is used for a door hinged on the right. In this way, only one latch profile can be used to latch with the fixing element.

[0037] Regarding disassembly, the latching device can be manually removed from the latch outline. This design means that no tools are required for disassembly. More precisely, the retaining element can be rotated by hand to rotate about a fixed axis, thereby releasing the latch between the retaining element and the first hinge element or the door. If the connection is disengaged accordingly, the two hinge elements can also be moved axially relative to each other, and the door can be removed from the frame accordingly. The force required to release the latch, while it can be applied manually, is not achievable during normal operation or transport. To release the latching device, the two latch arms can also be deformed by hand, for example, by squeezing them, to loosen the connection.

[0038] Regarding the first hinge element, preferably, the first hinge element has a mounting element with two mounting points for selectively mounting a hinge eye. Therefore, the hinge eye can be selectively connected to one of the two mounting points. For example, a door hinged on the right side and a door hinged on the left side can use different mounting points. The mounting element has holes adapted to the positions of the door's mounting bolts. Thus, the mounting element can be mounted on the door's mounting bolts. The hinge eye can be connected to one of the two mounting bolts, so that the hinge eye can also connect the mounting element to the door. The hinge eye is then connected to the mounting element at the corresponding mounting point using mounting bolts. For example, a threaded connection can be used. The corresponding mounting points can be arranged within the latch profile area, so that, depending on the different door hinges, one latch profile can be used to latch with the fixing element, while the other latch profile is blocked by the hinge eye.

[0039] Furthermore, preferably, the mounting element is positioned between the hinge eye and the door. The hinge eye can be threaded to the door's mounting bolts; thus, the mounting element can also be connected to the door via the corresponding threaded connection. At least in the mounting point area, the mounting element can have a flat construction. Additionally, the mounting element can extend parallel to the hinge axis.

[0040] Furthermore, preferably, the mounting elements are symmetrically designed. This allows the mounting elements to be used for doors that are hinged on the right side or the left side. Similar to the symmetry of the second hinge element, the axis of symmetry can extend laterally to the hinge axis or the hinge's rotation axis.

[0041] In terms of design, preferably, the first hinge element has a recess in which the pivot bracket can be accommodated when the door is closed. Therefore, when the door is closed, the pivot bracket can be very close to the inside of the door, thus directly contacting the door. Simultaneously, the door opening angle also increases because at the maximum opening angle, the end of the door will strike the inside of the stop bracket facing the door frame. The recess may be rectangular and is part of the mounting element of the first hinge element.

[0042] Furthermore, the first hinge element has at least one rotating U-shaped pin, which can rotate the fixing element to a position that does not obstruct the connection process when the two hinge elements are connected. The rotating U-shaped pin simplifies door installation. This is because if the fixing element is already connected to the fixed axis before the two hinge elements are connected to each other, and the door is correspondingly hung on the frame, the fixing element may obstruct or hinder the connection of the hinge elements. Therefore, in designing and setting the rotating U-shaped pin, when the two hinge elements are connected, that is, when there is axial relative movement between the two hinge elements, the fixing element will automatically rotate away about the fixed axis. This prevents the fixing element from colliding with mounting bolts, etc. In this respect, the fixing element can also be installed on the fixed axis before the actual door is installed, thereby speeding up the entire installation process. Preferably, the rotating U-shaped pin is preferably part of the mounting element.

[0043] Furthermore, preferably, the first hinge element has two opposing U-shaped pins. This allows the safety element to reliably swing outward independently of the door hinge when the two hinge elements are joined together. Different U-shaped pins can be used depending on whether the first hinge element is used for a door hinged on the left or right. A groove can be arranged between the two U-shaped pins.

[0044] Regarding the design of the swivel U-shaped pin, preferably, the swivel U-shaped pin includes beveled side wings, especially horizontal side wings. The beveled side wings can form an acute angle with the inner surface of the door, so that the fixing element can reliably swing outward when the two hinge elements are connected. The horizontal side wings can be perpendicular to the inner surface of the door and perpendicular to the hinge axis or the hinge rotation axis. Therefore, the horizontal side wings can serve as the contact surface for the fixing element or the hinge eye. When two swivel U-shaped pins are provided, the fixing element can be arranged or rest on one side of the two horizontal side wings, while the hinge eye is arranged or rests on the other horizontal side wing.

[0045] Preferably, the beveled sides of the two rotating U-shaped pins face away from each other. This ensures that the beveled sides face outwards, guaranteeing contact between the fixed elements when the hinge elements are engaged.

[0046] The above description applies to both the first hinge element mounted on the door and the second hinge element mounted on the frame; similarly, with appropriate adjustments if necessary, it also applies to both the first hinge element mounted on the frame and the second hinge element mounted on the door.

[0047] To achieve the above objectives, the present invention also proposes a device comprising a frame and a door rotatably connected to the frame by a hinge, wherein the hinge is designed as described above. Therefore, the hinge possesses the aforementioned advantages.

[0048] Regarding the aforementioned device, preferably, the door is rotatably connected to the frame via several hinges. With several hinges, the door can be supported on the frame at multiple points, thereby reducing the load on individual hinges. The rotation axes of each hinge can be aligned, ensuring reliable door rotation. When the door is suspended, the hinge elements of all hinges can be engaged simultaneously. This also provides an advantage for rotating U-bolts, especially when several hinges are present, as it is not necessary to ensure all fixing elements are in their proper positions before installation. This also applies to the automatic locking function, because closing the suspended door only once engages or latches all fixing elements to the door or the first hinge element.

[0049] Furthermore, regarding the door, preferably, the door is optionally hinged to the frame on the right or left side. For each hinge, the door has several, specifically two, mounting bolts. And the right-side hinge and the left-side hinge use different mounting bolts. Therefore, the first hinge element or mounting element also has holes for all the mounting bolts, so that, as described above, the same hinge element can be used for both right-side and left-side hinged doors. Attached Figure Description

[0050] Further details and advantages of the invention will now be described in more detail with reference to the accompanying drawings of exemplary embodiments. These drawings illustrate:

[0051] Figure 1a and Figure 1b A door with a first hinge element and a frame with a second hinge element are shown.

[0052] Figures 2a to 2d The different positions of the door when it is suspended and fixed are shown;

[0053] Figure 3a and Figure 3b The different positions of the door, including the fixing elements, are shown when it is suspended and fixed.

[0054] Figures 4a to 4c The door with its connecting frame is shown in different closed positions;

[0055] Figure 5a and Figure 5b A perspective view of the fixing element arranged on the fixed axis is shown;

[0056] Figure 6a and Figure 6b A perspective view of the fixing element when latched with the first hinge element is shown; and

[0057] Figure 7a and Figure 7b A perspective view is shown of a fastening element that can be latched with the mounting bolts of a door. Detailed Implementation

[0058] Figure 1a and Figure 1b The image shows a frame 30, which may be part of a cabinet composed of several metal plates. A hinge element 2 is fixed to the frame 30. The hinge element 2 mainly comprises three components: a pivot bracket 2.1, a hinge shaft 2.2, and a fixed shaft 2.3. The hinge shaft 2.2 and the fixed shaft 2.3 are connected as a single unit and are therefore designed as through bolts. These bolts are fixed in the pivot bracket 2.1 to prevent relative rotation and are spaced apart from the frame 30 via the pivot bracket 2.1.

[0059] The frame 30 or cabinet has an opening, not shown in detail in the figure, and can be closed via a door 20. A portion of the door 20 is as follows: Figure 1b As shown. The inner side of the door 20 is connected to hinge element 1, which can be rotatably connected to the second hinge element 2 on the frame side. The first hinge element 1 has a hinge eye 1.1, which is threadedly connected to the door 20. Through these two hinge elements 1 and 2, the door 20 can be rotatably connected to the frame 30, so that the door 20 can rotate around... Figure 2b The rotating axis D, which extends centrally through the hinge axis 2.2, pivots and can therefore be opened and closed.

[0060] Figure 2aThe corresponding connection or linkage position is shown. In this case, door 20 is positioned such that hinge eye 1.1 is concentrically arranged above hinge axis 2.2. By lowering door 20, hinge eye 1.2 moves axially along hinge axis 2.2 until it reaches pivot 2.1. Then, when the first hinge element 1 or hinge eye 1.1 rests on pivot 2.1 of the second hinge element 2, door 20 is in its final position, and door 20 is then rotatably connected to frame 30. During the connection process, hinge eye 1.1 is positioned above hinge axis 2.2, therefore door 20 is also referred to as being hung on frame 30.

[0061] In the corresponding position, door 20 can rotate relative to frame 30, and therefore can be opened and closed, but door 20 is not yet fixed to the frame. This is because it can also be lifted upwards again from frame 30 in the reverse order. This is generally not a major problem for a heavy and upright door 20. However, especially during transportation, such as when the cabinet is tilted, hinge eye 1.1 can easily slip off hinge pin 2.2 again. Figure 2b As shown, in order to prevent the two hinge elements 1 and 2 from accidentally disengaging, a fixing element 3 needs to be installed.

[0062] The fixing element 3 can be inserted axially from below onto the fixing shaft 2.3 until it reaches... Figure 2c The position is shown in the diagram. The advantage of fixing element 3 is that it requires no tools for installation, and the connection between it and fixing shaft 2.3 is very simple, even allowing for blind installation. (See diagram for reference.) Figure 2a As shown, the fixed shaft 2.3 has a locking groove 2.4, which is designed as a circumferential groove. The function of the locking groove 2.4 is to latch the fixing element 3 onto the fixed shaft 2.4, thereby allowing the fixing element 3 to... Figure 2c The connection position shown makes it difficult to remove from the fixed shaft 2.3.

[0063] To achieve a corresponding latching connection with the fixed shaft 2.3, the fixing element 3 has a latching claw 3.3, as shown in... Figure 5a and Figure 5b As shown in the enlarged perspective detail, when the fixing element 3 is inserted into the fixing shaft 2.3, the latch pawl 3.3 first rotates slightly outward and deforms within its elastic range. For this purpose, for example... Figure 1a As shown, the lower end of the fixed shaft 2.3 has a pointed tip, which simplifies the insertion of the fixing element 3 and the elastic deformation of the latch pawl 3.3. When the fixing element 3 is pushed onto the fixed shaft 2.3, causing the latch pawl 3.3 to reach the locking groove 2.4, the latch pawl 3.3 automatically engages with the locking groove 2.4, thereby fixing the fixing element 3 onto the fixed shaft 2.3.

[0064] However, even in this latched position where axial movement is impossible, the fixing element 3 can still rotate freely relative to the fixing shaft 2.3. When the fixing element 3 is inserted into the fixing shaft 2.3, the two hinge elements 1 and 2 are not initially secured to prevent disengagement. This is because the fixing element 3 must first be connected to the first hinge element 1.

[0065] In order to connect the fixing element 3 to the first hinge element 1, the fixing element 3 must be positioned around the fixing axis 2.3. Figure 2d The pivot point is shown. The fixing element 3 is connected to the first hinge element 1 by a latch, so no tools are required; instead, the fixing element 3 can be easily connected to the first hinge element 1 by hand.

[0066] from Figure 6a and Figure 6b The enlarged view shows the latch between the fixing element 3 and the first hinge element 1. The fixing element 3 has a latching device 3.1, which includes two locking arms 3.11. When the fixing element 3 is... Figure 6a Press the indicated position Figure 6b In the locked position shown, the two locking arms 3.11 undergo elastic deformation and then engage with the latch profile 1.5 of the first hinge element 1 after reaching the latch position. When the fixing element 3 is latched accordingly, the fixing element 3 can rotate together with the first hinge element 1 or the door 20 about the rotation axis D. Then, the fixing element 3 is rotatably connected to the first hinge element 1. Thus, the fixing element 3 establishes a connection between the first hinge element 1 and the second hinge element 2, ensuring that the first hinge element 1 can rotate relative to the second hinge element 2, but preventing the first hinge element 1 and the second hinge element 2 from translating. The first hinge element 1 or the hinge eye 1.1 is then axially fixed to the hinge axis 2.2 by the fixing element 3, thereby reliably connecting the door 20 to the frame 30.

[0067] Furthermore, manually rotating the fixing element 3 and latching it onto the hinge element 1 is not absolutely necessary, but when the door 20 is closed, the fixing element 3 will automatically latch onto the first hinge element 1. This automatic locking function is as follows: Figures 4a to 4c As shown. In Figure 4a In the middle, door 20 has been hung on frame 20, with hinge eye 1.1 located at the top of shaft bracket 2.1. Although fixing element 3 is connected to fixing shaft 2.3, it is not yet connected to the first hinge element 1. Door 20 is closed by rotating about rotation axis D. Figure 4bAs shown, door 20 is still in a half-open position. However, the fixing element 3 is already in contact with frame 30. If door 20 rotates further about axis D, fixing element 3 will move relative to door 20 or relative to first hinge element 1. Then, first hinge element 1 moves toward the fixed fixing element 3. When door 20 reaches the closed position, fixing element 3 engages with first hinge element 1, thereby connecting with first hinge element 1.

[0068] When the door 20 is opened again, the fixing element 3 will rotate together with the first hinge element 1 about the rotation axis D. This automatic locking function makes installation easier, especially when the door 20 is connected to the frame 30 by multiple hinges 10, because when the door 20 is closed, all the fixing elements 3 will lock simultaneously with their respective first hinge elements 1.

[0069] To disassemble door 20, the latching connection between the retaining element 3 and the first hinge element 1 must first be released. This can be done manually without tools. This is because the latching device 3.1 and the latch profile 1.5 disengage when the retaining element 3 rotates in the opposite direction about the axis of rotation D. For example, the locking arm 3.11 can be slightly pressed down, thus reducing the force required to release the latching connection. When the latch is released and the retaining element 3 is no longer connected to the first hinge element 1, the hinge eye 1.1 can move axially again relative to the second hinge element 2, and door 20 can be removed from frame 30 accordingly. It is not necessary to further release the retaining element 3 from the retaining axis 2.3.

[0070] If you want to hang the door 20 back onto the frame 30, the fixing element 3 may obstruct the hanging process because it may hit the mounting bolt 21, which will be described in more detail below, for example... Figure 2a As shown. Therefore, the fixing element 3 must first be rotated about the fixing axis 2.3 to a position that does not impede the axial movement of the first hinge element 1 and the second hinge element 2. To achieve automation, the first hinge element 1 has a rotating U-shaped pin 1.4.

[0071] For example, if the fixed element 3 is in Figure 3a As shown in the diagram, with the hinge eye 1.1 of the first hinge element 1 located on the shaft bracket 2.1, and the hinge shaft 2.2 located inside the hinge eye 1.1, during axial movement, the rotating U-shaped pin 1.4 contacts the fixed element 3 and pushes it to one side. Thus, the fixed element 3 rotates around the fixed shaft 2.3 by rotating the U-shaped pin 1.4 to a position that does not obstruct the axial movement of the first hinge element 1 and the second hinge element 2.

[0072] The geometry of the rotating U-shaped nail 1.4 is essentially consistent with the geometry of a prism, with one inclined wing 1.41 and one horizontal wing 1.42. The inclined wing 1.41 forms an acute angle with the door 20 or its inner surface. This acute angle, combined with the rotational capability of the fixing element 3 on the fixed shaft 2.3, means that when the door 20 is suspended, the fixing element 3 can swing outward accordingly. Figure 2d As shown, the horizontal wing 1.42 extends substantially perpendicular to the door 20 and serves as the contact surface for the fixing element 3 or the hinge eye 1.1.

[0073] like Figure 3b As shown, hinge element 1 has two rotating U-shaped pins 1.4. This is because the same hinge element 1 can be used for both right-hand hinged and left-hand hinged doors 20. For example, the figure shows a right-hand hinged door 20. If the hinge of door 20 is on the left, the first hinge element 1 must be rotated 180 degrees and then correspondingly mounted on the left edge of door 20. In this way, the upper rotating U-shaped pin 1.4 becomes the lower rotating U-shaped pin 1.4, which, when suspended, pushes the fixing element 3 to one side.

[0074] like Figure 2d As shown, for example, the first hinge element 1 has a groove 1.3 located between two rotating U-shaped pins 1.4. For example, in contrast... Figure 4a and Figure 4c It can be seen that when the door 20 is closed, the groove 1.3 is used to accommodate the shaft bracket 2.1. When the door 20 is closed, the shaft bracket 2.1 can directly rest against the inside of the door 20 through the groove 1.3.

[0075] The first hinge element 1 essentially consists of two components: a hinge eye 1.1 and a mounting element 1.6. The mounting element 1.6 includes a rotating U-shaped pin 1.4, a groove 1.3, and two latching profiles 1.5. To connect the first hinge element 1 to the door 20, two mounting bolts 21, each threaded, are provided on the inside of the door 20. The mounting element 1.6 has holes adapted to the mounting bolts 21, allowing it to be placed on the two bolts and then initially laid substantially flat on the door 20. The next step is to install the hinge eye 1.1. Thus, the two mounting bolts 21 form two mounting points 1.2 for the hinge eye 1.1, allowing it to be connected to the mounting element 1.6 at two different points as needed. This, in turn, complements the stop mechanism (Anschlag) of the door 20. This is because in the right hinge door 20 and the left hinge door 20, the hinge eye 1.1 is installed on different mounting points 1.2 of the mounting element 1.6 respectively.

[0076] The hinge eye 1.1 also has a hole, and therefore can be inserted into the mounting bolt 21. In this position, the hinge eye 1.1 is located on the mounting element 1.6 and on one of the two horizontal sides 1.42 of the rotating U-shaped pin 1.4. The hinge eye 1.1 and the mounting element 1.6 are then secured to the door 20 together by a nut and the mounting bolt 21. In order for the fixing element 3 to latch with the first hinge element 1 at the mounting point 1.2 not occupied by the hinge eye 1.1, the fixing element has a recess 3.2, which the mounting bolt 21 not used for connection to the door can be inserted into, despite the mounting bolt 21. For example, the recess 3.2 is located at the mounting point 1.2 not occupied by the hinge eye 1.1. Figure 5a As shown in the diagram. In this respect, the fixing element 3 can be independently selected to be connected to one of the two latch profiles 1.5, separate from the mounting bolt 21.

[0077] The two latch profiles 1.5 of the first hinge element 1 or mounting element 1.6 are arranged within the range of the mounting point 1.2, such that the mounting point 1.2 can achieve a threaded connection with the hinge eye 1.1 or a latching connection with the fixing element 3, depending on whether the hinge element 1 is for a door 20 that is hinged on the right or the left.

[0078] Like the first hinge element 1, the second hinge element 2 is also designed to be symmetrical, thus it can be used for both left-hand and right-hand hinged doors 20. Since the hinge pin 2.2 and the fixed pin 2.3 are identically designed, and both pins 2.2 and 2.3 are also adapted to latch with the fixed element 3 via corresponding locking slots 2.4, the same pin 2.2 and 2.3 can be used as either the hinge pin 2.2 or the fixed pin 2.3, depending on the installation configuration. Alternatively, this design allows the hinge pin 2.2 and the fixed pin 2.3 to be mounted on the door 20, while the hinge eye 1.1 is mounted on the frame 30.

[0079] Figure 7a and Figure 7b Another alternative embodiment is shown. Unlike the embodiment described above, the fixing element 3 is not latched to the first hinge element 1, but rather directly latched to the mounting bolt 21 of the door 20 via a latching device 3.1. Therefore, in this embodiment, the first hinge element 1 or the mounting element 1.6 need not have a latching profile 1.5, but the mounting bolt 1 must have a corresponding latching profile 1.5. Fundamentally, in this variant, the fixing element 3 is also connected to the first hinge element 1, but not directly; it is connected via the door 20. However, in this embodiment, the fixing element 3 can also rotate together with the door 20 about the rotation axis D, and the fixing element 3 fixes the two hinge elements 1 and 2, preventing their axial movement. Since the hinge 10 is designed and operates exactly the same as the hinge described above, please refer to the above description in this regard.

[0080] Figure Labels

[0081] 1 First hinge element

[0082] 1.1 Hinge eye

[0083] 1.2 Installation Point

[0084] 1.3 Groove

[0085] 1.4 Rotate the U-shaped nail

[0086] 1.41 Sloping side wing

[0087] 1.42 Horizontal flanks

[0088] 1.5 Latch Profile

[0089] 1.6 Mounting Components

[0090] 2 Second hinge element

[0091] 2.1 Shaft Support

[0092] 2.2 Hinge pin

[0093] 2.3 Fixed Shaft

[0094] 2.4 Locking slot

[0095] 3. Fixing elements

[0096] 3.1 Latch device

[0097] 3.11 Locking Arm

[0098] 3.2 Recessed part

[0099] 3.3 Latch Claw

[0100] 10. Hinges

[0101] 20 doors

[0102] 21 Mounting Bolts

[0103] 30 frames

[0104] D Rotation axis

Claims

1. A hinge (10) for rotatably connecting a door (20) to a frame (30), comprising a first hinge element (1) for mounting on the door (20) and a second hinge element (2) for mounting on the frame (30), wherein one of the two hinge elements (1, 2) has a hinge eye (1.1) and the other has a hinge shaft (2.2), the hinge shaft (2.2) being mounted on a shaft carrier (2.1) to prevent relative rotation; the hinge elements (1, 2) are connected to each other so that the door (20) is rotatably mounted on the frame (30); the hinge further comprises a fixing element (3) for securing the two hinge elements (1, 2) to prevent disengagement. Its features are, The fixing element (3) and the hinge eye (1.1) are located on opposite sides of the shaft frame (2.1); The hinge eye (1.1) and the hinge pin (2.2) can hook onto each other; The fixing element (3) is arranged and designed to automatically latch with the first hinge element (1) or the door (20) when the door (20) is closed.

2. The hinge according to claim 1, characterized in that, The fixing element (3) is rotatable relative to the second hinge element (2) via the fixing shaft (2.3).

3. The hinge according to claim 1, characterized in that, The fixing element (3) can be latched with the second hinge element (2).

4. The hinge according to claim 2, characterized in that, The fixed shaft (2.3) includes a locking groove (2.4), in which the fixing element (3) can be engaged.

5. The hinge according to claim 1, characterized in that, The fixing element (3) is located outside the force flow between the hinge elements (1, 2).

6. The hinge according to claim 1, characterized in that, The second hinge element (2) is symmetrically designed.

7. The hinge according to claim 1, characterized in that, The fixing element (3) axially fixes the hinge eye (1.1) on the hinge shaft (2.2).

8. The hinge according to claim 1, characterized in that, The fixing element (3) is rotatably connected to the first hinge element (1).

9. The hinge according to claim 1, characterized in that, The fixing element (3) includes a latching device (3.1) by means of which the fixing element (3) can latch with the first hinge element (1) or the door (20).

10. The hinge according to claim 1, characterized in that, The first hinge element (1) has a mounting element (1.6) having two mounting points (1.2) for selectively arranging the hinge eye (1.1).

11. The hinge according to claim 1, characterized in that, The first hinge element (1) has at least one rotating U-shaped pin (1.4), which, when the two hinge elements (1, 2) are connected, can rotate the fixing element (3) to a position that does not hinder the connection process.

12. The hinge according to claim 11, characterized in that, The two rotating U-shaped pins (1.4) are arranged opposite to each other, wherein each of the rotating U-shaped pins (1.4) has a beveled side wing (1.41), and wherein the beveled side wing (1.41) of the two rotating U-shaped pins (1.4) are back to back.

13. An apparatus comprising a frame (30) and a door (20), the door being rotatably connected to the frame (30) by a hinge (10), wherein the hinge (10) is designed in accordance with any one of claims 1 to 12.

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